Find HS Code and trade information for 自行车车圈

Bicycle Rim

A bicycle rim is the outer circular component of a bicycle wheel, holding the tire and tube. It is a crucial component influencing wheel strength, weight, aerodynamics, and ride quality.

Material

• Aluminum Alloy: The most common material due to its balance of cost, weight, and strength. Different alloys are used to optimize for specific applications (e.g., higher strength for downhill, lower weight for climbing).
• Carbon Fiber: Lighter and stiffer than aluminum, offering improved acceleration and handling. More expensive and potentially more susceptible to damage from impact.
• Steel: Historically common, now primarily found on budget bikes or for specialized purposes like cargo bikes where durability is paramount. Heavier and less efficient than aluminum or carbon fiber.
• Magnesium: Rarely used due to cost and corrosion concerns, but offers very low weight.

Purpose

• Tire Support: Provides a stable base for the tire, maintaining its shape and air pressure.
• Wheel Strength: Contributes significantly to the overall strength and rigidity of the wheel, resisting impacts and deformation.
• Braking Surface (for rim brakes): Acts as the friction surface for rim brakes, allowing the bicycle to slow down and stop.
• Aerodynamics: Rim profile can influence aerodynamic drag.

Function

The rim works in conjunction with the hub, spokes, and tire to create a functional wheel.

• Spoke Hole Configuration: The arrangement of spoke holes (number, pattern) affects wheel strength, stiffness, and truing ease.
• Rim Bed: The internal shape of the rim supports the tire and prevents it from slipping off.
• Valve Hole: Accommodates the valve stem for inflating the tire.
• Clincher, Tubeless, Tubular Compatibility: Rim designs differ to accommodate different tire/tube systems.

Usage Scenarios

The appropriate rim type depends on the intended use of the bicycle:

• Road Cycling: Lightweight aluminum or carbon fiber rims for efficient acceleration and climbing.
• Mountain Biking: Stronger aluminum rims with wider profiles to accommodate wider tires and handle rough terrain. Tubeless compatibility is common.
• Downhill/Enduro: Very robust aluminum rims designed to withstand significant impacts.
• Gravel Cycling: Aluminum rims with wider profiles for increased tire volume and comfort. Tubeless compatibility is common.
• Commuting/Urban Cycling: Durable aluminum rims for everyday use.
• BMX: Strong, double-walled aluminum rims designed for stunts and impacts.

Common Types

• Clincher Rims: The most common type. Tires are held in place by air pressure and a bead that hooks into the rim.
• Tubeless Rims: Designed for use with tubeless tires, which do not require an inner tube. Offer lower rolling resistance and reduced risk of pinch flats.
• Tubular Rims: Used with tubular tires, which are glued directly to the rim. Primarily used in professional road cycling due to their low weight and high performance.
• Single-Wall Rims: Lighter but less durable, typically found on older bikes or budget models.
• Double-Wall Rims: Stronger and more durable than single-wall rims, the most common type for modern bicycles.
• Wide Rims: Increasingly popular, especially for mountain biking and gravel cycling, allowing for wider tires and lower tire pressures.
• Carbon Fiber Rims: Lightweight and stiff, often with aerodynamic profiles. Can be clincher, tubeless, or tubular.
• Rim Brake vs. Disc Brake Rims: Rim brake rims have a machined braking surface, while disc brake rims do not.

自行车车圈的归类涉及车辆零件，具体如下：

• 8714.92.10.00:
  • 87章: 运输工具及其零件；飞机、直升机、其他飞行器；船舶及其辅助设备。本章涵盖了各种运输工具及其构成部分。
  • 8714: 车辆的零件和附件；非机动车（包括送货三轮车）。
  • 8714.92: 其他零件和附件。
  • 8714.92.10: 其他：车轮圈和辐条：车轮圈。
  • 税率详情：基础关税 5%，加征关税 25%，2025.4.2后加征关税 30%。总税率 5%+55%。

根据提供的参考资料，与“自行车车圈”相关的HS编码选项有限，仅找到以上1个。